Wave simulation method and device for pool wave maker and wave making device

A wave machine and wave technology, applied in the field of physical simulation of waves in the laboratory, can solve the problems of inability to obtain the analytical solution of the velocity potential, not forming a theoretical system of wave making, cumbersome and lengthy, etc., to increase the stability and effectiveness, Avoid deriving the calculation process and avoid the effect of inconsistencies

Active Publication Date: 2019-04-30
TIANJIN RES INST FOR WATER TRANSPORT ENG M O T
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AI Technical Summary

Problems solved by technology

This type of method has relatively large technical defects: on the one hand, it is necessary to assume the conditions of the wave-making signal first, and solve the velocity potential in the semi-infinite domain under the framework of the potential flow theory to obtain the analytical solution of the hydrodynamic transfer function. Period and other parameters are reversed to find the signal of the wave generator, so this method is only suitable for wave-making systems with simple plane shapes (such as unilateral straight lines, etc.) that can theoretically obtain the analytical solution of the velocity potential
For wave-making systems with more engineering application significance and more complex planar shapes, such as circular, parabolic, S-curved, L-shaped with curved transition...

Method used

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  • Wave simulation method and device for pool wave maker and wave making device
  • Wave simulation method and device for pool wave maker and wave making device
  • Wave simulation method and device for pool wave maker and wave making device

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Embodiment 1

[0062] This embodiment provides a wave simulation method for a wave maker in a pool, which is suitable for three-dimensional complex wave maker equipment with any shape on the plane, for example, a linear wave maker, an L-shaped wave maker, an S-shaped wave maker, a rectangular Wavemakers, circular wavemakers, and other more complex planar wavemakers of any shape. like Figure 4 As shown, the method includes the following steps:

[0063] Step S401, according to the plane layout of the wave-making plates of the wave-making machine, establish the initial state coordinate system of the wave-making machine in the physical wave domain, and determine the initial position of each wave-making plate.

[0064] Specifically, according to the plane layout of the wave-making plate of the wave-making machine, the initial state coordinate system of the wave-making machine in the physical wave domain can be established to select the corresponding initial state equation; according to the init...

Embodiment 2

[0071] In this embodiment, on the basis of the first embodiment above, an L-shaped wave maker is taken as an example to describe the implementation process of the wave simulation method in detail. like Figure 5 As shown, the method includes the following steps:

[0072] Step S501, according to the plane layout of the wave-making plates of the L-shaped wave-making machine, establish the initial state coordinate system of the wave-making machine in the physical wave domain, and determine the initial position of each wave-making plate.

[0073] The L-shaped wave-making machine includes straight-line segmented wave-making units arranged along two adjacent sides of the pool. According to the plane layout of the wave-making plate of the L-shaped wave-making machine, the following can be established: Figure 7 The initial state coordinate system shown, and determine the following initial state equation and calculate the coordinates of the center position of each plate of the wave-...

Embodiment 3

[0107] In this embodiment, on the basis of the first embodiment above, the implementation process of the wave simulation method is described in detail by taking a circular three-dimensional wave generator as an example. like Image 6 As shown, the method includes the following steps:

[0108] Step S601, according to the plane layout of the wave-making plates of the circular three-dimensional wave-making machine, establish the initial state coordinate system of the wave-making machine in the physical wave domain, and determine the initial position of each wave-making plate.

[0109] According to the plane layout of the wave-making plate of the circular three-dimensional wave-making machine, the initial state coordinate system of the wave-making machine in the physical wave domain is established, as shown in Figure 9 As shown, and determine the following initial state equation and calculate the coordinates of the center position of each plate of the wave-making machine as the ...

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Abstract

The invention, which belongs to the technical field of physical simulation of laboratory waves, provides a wave simulation method and device for a pool wave maker and a wave making device. On the basis of a full-domain method of combination of a virtual wave domain and a physical wave domain, a completely non-linear moving boundary differential equation between two domains is established and is processed by numerical discrete treatment and a wave-making signal is obtained directly. Different from the traditional linear analytical solution method, the provided method considers the nonlinearityof the wave completely and does not require calculation of the complex hydrodynamic transfer function in the frequency domain, so that the simulation accuracy and efficiency are improved effectively,the uncoordinated phenomenon of the wave plate motion is reduced, and the stability and effectiveness of wave physics simulation are enhanced. Moreover, the method having high universality and versatility can be adapt to the conventional single-sided linear wave-making machine, L-type wave-making machine, rectangular wave-making machine, circular wave-making machine, or other more complicated planar arbitrary-form wave-making machine systems.

Description

technical field [0001] The invention relates to the technical field of physical simulation of laboratory waves, in particular to a wave simulation method, device and wave-making equipment for a pool wave maker. Background technique [0002] In coastal, offshore or marine engineering, waves are a key hydrodynamic load. Simulating waves and studying their effects or damage mechanisms on structures can help people understand the threat of waves, so as to provide technical guidance for scientific research and engineering design. The physical simulation of ocean waves is an important method to study wave theory and an important means to solve various wave-related problems. The use of wave generators to generate physical waves in the laboratory is an important experimental method for studying wave propagation, breaking characteristics and their interaction with sea-related structures. The accuracy of the ocean waves simulated in the laboratory will directly affect the accuracy a...

Claims

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Application Information

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IPC IPC(8): G01M10/00
CPCG01M10/00
Inventor 阳志文解鸣晓李孟国张义丰左书华李怀远姚姗姗
Owner TIANJIN RES INST FOR WATER TRANSPORT ENG M O T
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